Rainbow decoration



FIG. 1 is a top perspective view of my new design for a rainbow decoration;

FIG. 2 is a left side elevation view of my new invention;

FIG. 3 is a ride side elevation view of my new invention;

FIG. 4 is a top plan view of my new invention, wherein the bottom plan view is reversed;

FIG. 5 is a front elevation view of my new invention; and,

FIG. 6 is a rear elevation view of my new invention.

The broken lines in FIGS. 1-3 and 5-6 illustrate portions of the rainbow-shaped food product that form no part of the claimed design. 

CLAIM The ornamental design for a rainbow decoration, as shown and described. 